I-4 iLayer ENIG FR4 iimfama eziNtutywa ngePCB
Iimfama Zangcwatywa NgePCB
I-PCB nge-vias inokwahlulwa ibe nge, yimfama nge kwaye ingcwatywe nge.Umngxuma oyimfama PCBs inokuba sisisombululo xa ufuna ukubeka PTH vias ngokwaneleyo ebhodini kodwa isithuba silinganiselwe.Imingxuma eyimfama isetyenziselwa ukudibanisa iileya zePCB ngaphakathi kwemida yomphezulu.Ukudlula okungaboniyo yi-electroplated ngendlela edibanisa kuphela umaleko ongaphandle omnye okanye ngaphezulu kwamaleko angaphakathi.I-vias engcwatywayo i-electroplated vias edibanisa imigangatho emibini okanye ngaphezulu yangaphakathi kodwa ayidityaniswanga kumaleko angaphandle.
Izibonelelo zeemfama ezingcwatywa nge-PCB
1. Imida yoxinaniso lweengcingo kunye neepads kuyilo inokuhlangatyezwana nayo ngaphandle kokunyusa inani leeleya okanye ubungakanani bebhodi yesekethe.
2. Ukunciphisa i-aspect ratio ye-PCB circuit
Ubumfama nge-PCB ukuhlangabezana nophuculo loxinaniso lwebhodi ngaphandle kokunyusa inani leeleya okanye ubungakanani bebhodi.Ke ngoko, ii-vias ezingaboniyo/ezingcwatyiweyo ziqhele ukusetyenziswa kwii-HDI PCB.Ihlala isetyenziswa kwiifowuni eziphathwayo, unxibelelwano olungenazingcingo, i-MID.Incwadi yokubhalela.
